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Thread: I can't see video on conversion or re-rendering

  1. #1
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    Default I can't see video on conversion or re-rendering

    I have some large .mov files that I'm trying to convert to .mp4. As the original .mov files they look fine if I play them in either Quicktime or VLC Media Player.
    However, if I load them into Sony Vegas to re-render them as some other format the video doesn't show, just the audio track. If I convert them with something like Wondershare or the like I get the same results.

    Does anyone think it is the .mov file itself, or is there something about the conversion that's goofy? How can I convert these?

  2. #2

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    MOV is a container, just like MP4, it's not the actual codec.

    What codec is in the MOV file and do you have that codec available in Vegas? e.g. if it's ProRes do you have ProRes available in Vegas?

  3. #3
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    Quote Originally Posted by David Partington View Post
    What codec is in the MOV file and do you have that codec available in Vegas? e.g. if it's ProRes do you have ProRes available in Vegas?
    Good question. How can I find out what codec is being used in a .mov file?

  4. #4

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    I don't have a Windows box here I can go look on - but I usually load the video in to any player like Quicktime or VLC, or perhaps even MPEGStreamclip and ask it to tell me what the codec is.

    In Quicktime load the movie then go to Window --> Show Movie Inspector.

    Do you have Quicktime installed on your PC? If not, it's probably a good idea to install it since that would also install the (read-only) ProRes codecs which Vegas should then be able to use. If you already have it installed then I'm not sure where to go next and hopefully a Vegas user can be of more help.

  5. #5
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    I figured out (with a free program called MediaInfo) the following info:

    Format: MPEG-4
    Format profile: QuickTime
    Codec ID: qt
    File size: 27.9 GiB
    Duration: 1h 26mn
    Overall bit rate mode: Variable
    Overall bit rate: 46.3 Mbps
    Encoded date: UTC 2014-03-19 00:11:20
    Tagged date: UTC 2014-06-23 17:49:58
    Writing library: Apple QuickTime

    I have another problem, however. Whenever I try to open Quicktime (I'm running Windows 7), I'm getting "Error 46: Could not load or find the QuickTime ActiveX control." I'm not sure if this has anything to do with my problem of being able to convert the .mov file or not, but I thought I'd mention it just in case it's somehow related.

  6. #6

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    I would try re-installing Quicktime.

  7. #7
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    Quote Originally Posted by David Partington View Post
    I would try re-installing Quicktime.
    I've actually tried that already, to no avail.

  8. #8

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    I suspect the 'Error 46" only relates to an ActiveX Control used by MSIE. I don't think it relates to the 'no video' problem.
    I assume Vegas can understand the MOV container; even if Quicktime were not installed. But in this instance it appears Vegas is not able (or unable) to read the video in "MPEG-4" files.
    How does Vegas usually handle MPEG-4?

  9. #9
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    FWIW I've never had any problem with MPEG-4 Quicktime MOVs in Vegas
    Tim

  10. #10
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    Quote Originally Posted by TimStannard View Post
    FWIW I've never had any problem with MPEG-4 Quicktime MOVs in Vegas
    Not worth much, I'm afraid.

    Quote Originally Posted by TimAndrews View Post
    How does Vegas usually handle MPEG-4?
    I haven't had many files in that format. I can't recall if I ever had a problem with any format other than .mov.

    Here's what it looks like in Vegas when I drag a .mov video into a project with Quicktime installed:

    e1.jpg

    According to Vegas, if I don't have Quicktime installed I get this error message in Vegas after doing the same task as above:

    e2.jpg


    That in itself is troublesome, but what concerns me the most is that I can't even convert the file to another format without the same audio-only result.

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